2,2-dimethyl-8,9-dihydro-1,3-dioxino(4,5-b)quinoline-4,6-dione

2-[(二甲基氨基)亚甲基]-1,3-环己二酮

2,5-dioxo-1,2,5,6,7,8-hexahydro-quinoline-3-carbonitrile

2,5-dioxo-1,6,7,8-tetrahydroquinoline-3-carboxamide

1,3-环己二酮